Abstract: For problem that existing monitoring system of water source wells in coal mine cannot monitor video information surrounding water wells limited by data transmission rate of radio or GPRS, the paper proposed a design scheme of wireless video monitoring terminal of water source wells. The monitoring terminal adds the part of real-time video monitoring, optimizes H.264 compression module, and uses TD-SCDMA wireless broadband of 3G network for transmission of video streams. The test results show that the monitoring terminal can meet the needs of capture and transmission of video information, and realizes multi-function monitoring of water source wells.